Question

the factor that is the transmitted in wave is.

Answer 1

FACTORS AFFECTING SPEED OF SOUND IN GAS (Explained)

Pressure

So, there is no effect of pressure on the speed of sound.

2. Temperature

So speed of sound changes proportionately with temperature.

3. Density of gaseous medium

Speed of sound is lesser in dry air than in humid air.

Reason: When water vapors enter the atmosphere, they replace either an O2 or an N2 molecule because they are found in majority and are already present in the atmosphere before the water molecules.

Now, the molecular mass of:

O2 = 32g

N2 = 28g

H20= 18g

And,

density = mass / volume

So, as mass increases, density increases in a specific volume. So the density of atmosphere with water molecules is lesser. This creates more space for the sound waves to propagate than in dry air.